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Nitric Alpha NO2 When the level of DHT outweighs the level of testosterone in the body, hair loss is likely to occur. DHT inhibitors work against this binding process, stopping DHT from forming and cutting down baldness before it can occur. Used in conjunction with hair growth stimulators, DHT inhibitors are quite effective.3.Anti Androgens - Another factor that causes baldness is the binding of testosterone to androgen receptors, a combination that damages the hair follicles and causes them to weaken. Androgen binding occurs further down the road, whereas 5-Alpha reductase binding is the first chemical combination that takes place in the hair loss condition.